code: def test_get_loc(self, numeric_indexing_engine_type_and_dtype):
      engine_type, dtype = numeric_indexing_engine_type_and_dtype
  
      # unique
      arr = np.array([1, 2, 3], dtype=dtype)
      engine = engine_type(arr)
      assert engine.get_loc(2) == 1
  
      # monotonic
      num = 1000
      arr = np.array([1] * num + [2] * num + [3] * num, dtype=dtype)
      engine = engine_type(arr)
      assert engine.get_loc(2) == slice(1000, 2000)
  
      # not monotonic
      arr = np.array([1, 2, 3] * num, dtype=dtype)
      engine = engine_type(arr)
      expected = np.array([False, True, False] * num, dtype=bool)
      result = engine.get_loc(2)
      assert (result == expected).all()
  
file_path: pandas/pandas/tests/indexes/test_engines.py
imports: import re
  import numpy
  import pytest
  from pandas._libs import index
  import pandas
label_desc: Use image node_id 3 for calling the TestNumericEngine obj's underlying member method code with example usage: obj.test_get_loc(numeric_indexing_engine_type_and_dtype) without return types